There are a "number of casualties" following a mid-air collision between an aircraft and helicopter over Buckinghamshire.

Thames Valley Police said the crash took place over the village of Upper Winchendon, near the Waddesdon Manor estate owned and maintained by the Rothschild family, at around noon on Friday (November 17)

A police statement said: "We are aware of a number of casualties following an incident this afternoon in Waddesdon, near Aylesbury.

"There were a number of road closures following the incident which have now been lifted.